Erdas Imagine System Requirements

[Charise Farag]

FreeDownload ERDAS IMAGINE for Windows PC as a powerful software suite developed by Hexagon. With its advanced capabilities in remote sensing, image processing, and spatial modeling, it has become an indispensable tool for professionals and researchers in agriculture, environmental monitoring, urban planning, and disaster management. In this article, we will delve into the features, benefits, and system requirements, shedding light on how it enables users to unlock valuable insights from geospatial data.

It provides various remote sensing capabilities, allowing users to process and analyze satellite and aerial imagery. It supports various data formats, including multispectral, hyperspectral, and LiDAR data, enabling users to extract meaningful information from diverse sources. With its advanced algorithms, users can perform image classification, change detection, and land cover mapping, among other tasks.

It offers an extensive image processing tool suite that empowers users to enhance, manipulate, and analyze imagery. From basic operations like image rectification, mosaicking, and georeferencing to sophisticated tasks such as radiometric correction and pan-sharpening, the software provides a comprehensive set of tools for image manipulation.

It allows users to create and execute spatial models, enabling them to automate complex geospatial workflows. Leveraging the Graphical Modeler allows users to string multiple processing steps and algorithms to streamline repetitive tasks. This feature saves time and ensures reproducibility and consistency in analysis.

This software allows users to fuse data from multiple sensors and sources, facilitating a comprehensive understanding of the Earth's surface. It enables the integration of different data types, such as imagery, elevation data, and vector data, resulting in rich and informative composite datasets.

it equips users with advanced analytical capabilities, enabling them to extract valuable insights from geospatial data. From detecting changes in land cover to assessing vegetation health and monitoring urban growth, the software provides a suite of spatial analysis and interpretation tools.

This software seamlessly integrates with other geospatial software and platforms, allowing users to leverage additional functionalities. It supports interoperability with industry-standard tools like ArcGIS, ENVI, and QGIS, enabling data exchange and collaboration across different platforms.

Despite its powerful features, it offers a user-friendly interface that caters to novice and experienced users. The intuitive graphical interface, comprehensive documentation, and online resources ensure a smooth learning curve and efficient utilization of the software's capabilities.

This software has emerged as a dominant remote sensing and geospatial analysis force. Its comprehensive features, advanced analytics capabilities, and seamless integration with other software make it a valuable tool for professionals and researchers. By leveraging the power, users can unlock the potential of geospatial data, enabling informed decision-making and a better understanding of our ever-changing world. You can embark on a geospatial exploration and analysis journey with the proper system requirements.

From the vector tab, I select "Reproject shapefile". For the input file I select this shapefile I opened, however I get the error "Fail to convert string to coordsys obj." Googling this error produces no results. The source projection fields are not filled, and I cannot reproject the shapefile:

Selecting Edit -> Add coverage projections (I assumed this was a way of defining the projection for the layer), I select Edit Projection Parameters, and then select WGS 84 and Decimal Degrees. I select Yes overwrite PRJ file, then get the error message "Faled to translate erdas map projection to PE coordsys.", which again brings up no results in Google.

ERDAS seems to be unable to read projection information for my shapefiles, or possibly unable to read the .prj files. Watching this video using an older version of ERDAS: =Vfk4eOJ92xw the process seems straightforward enough, but I've tried various shapefiles from different sources, and new shapefiles made in Arc and QGIS, and get the same error. I've managed to reproject raster data fine.

i. ArcGIS>ArcToolbox>Data management tools>Projection and transformationii. From Projection and transformation>define projection>Define projection has two parameters and they are input shape file and coordinate system.

Vendor

ERDAS, Inc.

2801 Buford Highway NE

Atlanta, Georgia USA 30329-2137

404-248-9000, 404-248-9400 (fax); www.erdas.com Release Date: September 2001 Requirements

Hardware

Minimum Configuration: Intel Pentium II or higher

64 MB of Memory (128 or more highly recommended)

CD-ROM drive for installation

Super VGA monitor - 800 x 600 x 256 colors (1024 x 768 x 64K recommended)

Centronics parallel port for hardware license key

Software

Windows NT 4.0 with service pack 6 or higher or Windows 2000 service pack 1

IMAGINE Advantage 8.5 (required, sold separately)

Stereo Analyst (not required, allows for edits, sold separately)

Cost

IMAGINE OrthoBASE: $5,000

IMAGINE OrthoBASE Pro: $10,000.00 (includes IMAGINE OrthoBASE)

IMAGINE Advantage: $4,000.00

tereo Analyst: $3,000.00

Summary

IMAGINE OrthoBASE Pro is an upgrade to IMAGINE OrthoBASE that allows for fully automatic DEM (digital elevation model) extraction. It measures mass points by utilizing image-matching techniques. Extraction of DEM data is one of the major products of softcopy photogrammetry and was one of the first tasks to be automated. In previous years, ERDAS provided the UNIX-based module IMAGINE OrthoMAX™, which was supported up to ERDAS IMAGINE Version 8.3. Now, with IMAGINE OrthoBASE Pro, a Windows NT- or Windows 2000-based solution is available that smoothly links into the other Windows-based modules. IMAGINE OrthoBASE provides tools for determination of exterior orientation parameters by automatic tie point collection and aerotriangulation (AT) for orthorectification. With the addition of DEM extraction, IMAGINE OrthoBASE Pro provides the missing link between AT and orthorectification by providing DEM data. Both modules require a license for the ERDAS image processing software IMAGINE Advantage. Editing of the DEM data is possible either in IMAGINE Advantage or in Stereo Analyst. While IMAGINE Advantage includes a multitude of image processing tools, IMAGINE OrthoBASE, IMAGINE OrthoBASE Pro, and Stereo Analyst together make up what ERDAS calls their Photogrammetry Product Suite. For a review of IMAGINE OrthoBASE prior to IMAGINE OrthoBASE Pro, see PE&RS 5/2000. For a review of Stereo Analyst, see PE&RS 9/2001. IMAGINE OrthoBASE Pro comes with a 30-day evaluation license, a set of tutorial data, and extensive documentation. As input for DEM extraction, it uses a variety of common image formats and either the AT results generated by IMAGINE OrthoBASE or exterior orientation parameters imported from external sources. It generates DEM data in the form of IMAGINE *.img raster files, TIFF raster files, ESRI Shapefiles, Terramodel TIN (Triangulated Irregular Network) files, or plain ASCII files. DEMs are generated either as individual DEMs per stereo model, or as a mosaicked DEM for the entire block. The software is designed to process large data sets in a GUI-based production environment and provides tools for quality analysis. Features

Sample Data and Hardware

This evaluation is based upon the tutorial data set provided by ERDAS on the installation CD and on a data set provided by HJW GeoSpatial. The ERDAS imagery of Laguna Beach, CA was at a 1:40,000 scale, and was scanned at 50 microns. The HJW data set was at a 1:24,000 scale, and was scanned at 25 microns. The latter data set consisted of five images of mountainous terrain and was relatively challenging mainly because it contained some heavily forested areas. In both cases, the exterior orientation parameters were known; therefore, no AT had to be performed in IMAGINE OrthoBASE. The evaluation was performed on a Pentium II 266 Mhz PC with 256 MB of memory and running Windows NT 4.0. Operation

Block File

IMAGINE OrthoBASE appears as an icon on the main ERDAS IMAGINE toolbar. When IMAGINE OrthoBASE Pro is installed, the DEM extraction options appear under the existing dropdown menus of IMAGINE OrthoBASE. All menus are well-organized and guide the user easily through a logical sequence of processing steps. Before starting the DEM extraction, the user has to set up an IMAGINE OrthoBASE block file containing at least two images. This binary *.blk file contains all necessary project information, such as interior and exterior orientation parameters, coordinate system, map projection and map units, camera data, input image file names and file paths, output DEM file names and file paths, as well as DEM processing parameters. Once the *.blk file has been defined, the images can be attached, and the image pyramid layers for hierarchical processing must be computed. Then, the AT can be performed, or exterior orientation parameters can be imported instead. DEM Setup

The next step is to set up basic DEM extraction parameters. The basic parameters are output grid size, file name and file path of the output DEM, and DEM format. DEMs can be generated per stereo model, or as a merged DEM for the entire block. Possible data formats are: a regular grid in the form of an IMAGINE *.img file or TIFF file, derived from irregular mass points,

iregular mass points in form of a Terramodel TIN file,

iregular mass points in form of an ESRI 3D Shapefile, or

iregular mass points stored in a plain ASCII file. Advanced Parameters

If the user is satisfied with the default parameters, the process of DEM extraction can be started. Otherwise, a set of more advanced extraction parameters can be defined. The advanced properties window (see Figure 1) contains four tabs for General, Image Pair, Area Selection, and Accuracy parameter settings.

3a8082e126